# Shared Flashcard Set

## Details

Nov. 10 Lecture
Part 2
23
Nursing
11/12/2014

Term
 THE BODY MUST GENERATE MORE NEGATIVE INTRPLEURAL PRESSURES DURING INSPIRATION THAN WE WOULD EXPECT DUE TO WHAT?
Definition
 OVERCOME THE RESISTANCE TO AIRFLOW
Term
 DURING THE FIRST PART OF INSPIRATION IS THERE TURBULENT OR LAMINAR AIRFLOW?
Definition
 TURBULENT
Term
 THE SECOND PART OF INSPIRATION IS THERE TURBULENT OR LAMINAR FLOW?
Definition
 LAMINAR
Term
 DURING INSPIRATION WHEN IS THERE THE MOST AIRWAY RESISTANCE?
Definition
 IN THE MIDDLE OF INSPIRATION. DIFFERENCE GETS BIGGER, BUT ONCE AIR IS MOVING, IT DOESN;T TAKE THE SAME AMOUNT OF FORCE TO CONTINUE TO KEEP IT MOVING.
Term
 DURING EXPIRATION DO WE HAVE TO GENERATE A HIGHER, LESS NEGATIVE, INTRAPLEURAL PRESSURE TO PUSH AIR OUT?
Definition
 YES
Term
 NEGATIVE PRESSURE CNA ACTUALLY FALL ALL THE WAY DOWN TO -50 OR -60CMH20. HOW IS THIS POSSIBLE?
Definition
 BY INHALING AGAINST RESISTANCE.
Term
 IF YOU HAVE A PNEUMOTHORAX WHAT HAPPENS TO THE CLOSED SYSTEM?
Definition
 IT IS NO LONGER A CLOSED SYSTEM. AS VOLUME INCREASES, THE PRESSURE REMAINS THE SAME.
Term
 WHAT HAPPENS OF INTRAPLEURAL PRESSURE EQUALS ATMOSPHERIC PRESSURE?
Definition
 THE VOLUMES AND PRESSURES WILL BE ZERO
Term
 WHAT IS THE DIFFERENT BETWEEN VOLUME AND CAPACTITIES?
Definition
 A CAPACITY IS THE SUM OF 2 OR MORE VOLUMES.
Term
 WHAT IS TIDAL VOLUME?
Definition
 AMOUNT OF AIR BROUGHT INTO AND EXHALED FROM THE LUNGS IN ONE EUPNEIC BREATH. ABOUT 500ML
Term
 WHAT IS INSPIRATORY RESERVE VOLUME (IRV)?
Definition
 AMOUNT OF AIR THAT CAN BE BROUGHT INTO THE LUNG FOLLOWING A EUPNEIC INSPIRATION.
Term
 WHAT IS EXPIRATORY RESERVE VOLUME (ERV)?
Definition
 AMOUNT OF AIR THAT CAN BE EXHALED FROM THE LUNGS FOLLOWING A NORMAL EUPNEIC EXPIRATION.
Term
 WHAT IS THE FORMULA FOR RESIDUAL VOLUME (RV)?
Definition
 RV=FRC-ERV
Term
 WHAT IS RESIDUAL VOLUME?
Definition
 AMOUNT OF AIR THAT ALWAYS REMAINS IN LUNGS. CANNOT BE EXHALED NO MATTER HOW HARD YOU TRY.
Term
 WHAT IS INSPIRATORY CAPACITY?
Definition
 AMOUNT OF AIR THAT WE CAN FOREFULLY INSPIRE
Term
 WHAT IS THE FORMULA FOR IC?
Definition
 IC= TV + IRV
Term
 WHAT IS THE FORMULA FOR FRC?
Definition
 RV + ERV
Term
 WHAT IS VITAL CAPACITY?
Definition
 AMOUNT OF AIR THAT CAN BE FORCEFULL INHALED AND EXHALED FROM THE LUNGS.
Term
 WHAT ARE 2 FORMULAS FOR VITAL CAPACITY?
Definition
 VC= IRV + TV + ERV OR IC + ERV
Term
 WHAT ARE THE 2 FORMULAS FOR TOTAL LUNG CAPACITY?
Definition
 TLC = TLC=VC + RV OR TLC= IC + FRC
Term
 WHAT THREE MEASUREMENTS ARE WE UNABLE TO MEASURE?
Definition
 ANY VOLUME OR CAPACITY THAT HAS THE COMPONENT OF RESIDUAL VOLUME IN IT, CANNOT BE MEASURED BY SPIROMETRY. SPIROMETRY ONLY MEASURES WHAT CAN BE INHLAED AND EXHALED. UNABLE TO MREASURE RV, FRC, AND TLC.
Term
 WHAT TYPE OF METHOD DO WE MEASURE IN THE LUNGS OF WHAT WE CAN'T MEASURE WITH SPIROMETRY.
Definition
 HELIUM DILUTION METHOD
Term
 IF THE PATIENT INHALES MAXIMALLY, WE CLOSE THE ATM CIRCUIT AND OPEN THE HE. CIRCUIT. WILL THE HE DILUTE TLC?
Definition
 YES, NOT VC!!
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